Gravitational Collapse: Expanding and Collapsing Regions - General Relativity and Quantum CosmologyReport as inadecuate




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Abstract: We investigate the expanding and collapsing regions by taking two well-knownspherically symmetric spacetimes. For this purpose, the general formalism isdeveloped by using Israel junction conditions for arbitrary spacetimes. Thishas been used to obtain the surface energy density and the tangential pressure.The minimal pressure provides the gateway to explore the expanding andcollapsing regions. We take Minkowski and Kantowski-Sachs spacetimes and usethe general formulation to investigate the expanding and collapsing regions ofthe shell.



Author: M. Sharif, G. Abbas

Source: https://arxiv.org/







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